baber/WOPTO huggingface dataset:
Patent GB-1090458-A (GB)
Title: Improvements relating to deflection circuits especially for telovision apparatus
IPC: H04N3/22
Filed: 1964-12-17
Abstract: 1,090,458. Sawtooth circuits. TELEFUNKEN PATENT VERWERTUNGS G.m.b.H. Dec. 17, 1964 [Jan. 8, 1964], No. 51320/64. Headings H3P and H3T. In a field deflection circuit for a television receiver comprising a switching transistor or valve 1 feeding an output transistor or valve 3, the amplitude of current in deflection coils (not shown) is stabilized against supply voltage variations by rectifying the flyback voltage and feeding the resultant voltage to the common electrode of the switching stage 1, the feedback being decoupled from the control electrode. As described, the circuit is made self-oscillatory by feedback via components 14 ... 18 and is synchronized by pulses at 2. The output current is linearized by a feedback network comprising a differentiating circuit 22 and an integrating circuit 23, 12, 11. The voltage-dependent resistor 19 is used as a stabilizing rectifier and may be connected to a tapping on the primary of transformer 5.
Patent GB-1056658-A (GB)
Title: Improvements in and relating to blowers for textile machines
IPC: D01H11/00
Filed: 1965-12-03
Abstract: A blower 19, Figs. 1 and 2 not shown, for cleaning a textile machine e.g. a winding machine or, as in Fig. 1, a ring spinning machine, reciprocate on rails 17 and comprises an impeller 21 driven by means such as an electric motor 22 which also drives the blower wheels 18 and is reversed at each end of the blower run e.g. by a switch 35 operated by end stops 37, 38.  When impeller 21 carries a downward draught, hinged flaps 27 which can seal off a chamber 25 above the impeller, are opened and air can pass through the casing 20 to blow the centre of the frame particularly the creel bobbins 12.  When the direction of travel of the blower and direction of rotation of the impeller are reversed the upward draught closes the flaps 27 and the air flows down pipes 31, 32 to nozzles 31b, 32b to be directed to the drafting head regions.  In Fig. 3, not shown, the pipes are formed with a series of outlets to direct air to different parts of the machine.  Opening 30 at the bottom of casing 20 may also have closure means and the chamber so formed provided with blower pipes to clean other parts of the machine.  An opening in the floor adjacent the centre of the frame is provided to lead the impurities to a filter. Motor 22 picks up its current from rails 17; if a three phase motor is used a third rail is provided.  Flaps 27 may be replaced by power, e.g. solenoid, operated flaps.  One blower could cover two machines in which case it could be restricted to one machine to allow maintenance on the other.
Patent GB-514474-A (GB)
Abstract: 514,474. Melting and casting furnaces. SPLADIS SOC. POUR L'APPLICATION D'INVENTIONS SCIENTIFIQUES. March 23, 1938, No. 8932. Convention date, Dec. 16, 1937. [Class 51 (ii) [Also in Groups XXII and XI] A centrifugal machine for making tools, nozzles, balls and races, gramophone needles, cutlery, valves, screwing-dies, glazier's diamonds, contact breakers, turbines and compressors, blow pipes and hearths by casting or sintering ultra refractory materials, such as tungsten carbide, has an electrically-heated furnace 11 in a frame 12, pivoted at 4 to a hollow shaft 1 which is rotated by a motor 10, the furnace being supplied with inert gas and its temperature continuously observable by means of an optical pyrometer 47 kept in sight of the inside of the crucible in the furnace by means of the shaft 1, a tube 46 and a reflector at the pivot 4. Before rotating, the furnace is moved aside as at 1, Fig 2, and a pneumatic tyred wheel 27 is moved up by a hydraulic cylinder 33 to engage a wheel 39 and as rotation ceases the furnace again comes into this position. The pivot pin 14, Fig. 3, of the frame 12 is hollow to accommodate the reflector 48 which is moved through half the angle that the pin 14 is moved through, by gearing 55, 56, 58, 59, and adjusted by a worm 60. The pin 14 closes the hole of the shaft 1 until the frame 12 is swung aside when a hole 54, Fig. 8, permits observation and admits scavenging gas, such as dry nitrogen, to the tube 46 and crucible. To avoid risk of electric leakage the lower end of the tube 46 is of heat proof glass.
Patent GB-1524209-A (GB)
Title: Method of drying paraformaldehyde
IPC: C08F6/00
Filed: 1975-12-16
Abstract: 1524209 Azeotropic removal of water from paraformaldehyde SOC ITALIANA RESINE SIR SpA 16 Dec 1975 [20 Dec 1974] 51508/75 Heading C3L Water is removed from paraformaldehyde by (1) providing a suspension of solid paraformaldehyde in an organic liquid in which the paraformaldehyde is substantially insoluble, the said liquid being one which forms an azeotropic mixture with water and (2) distilling the suspension to remove water in azeotropic admixture with the organic liquid. Suitable organic liquids are pentane, hexane, heptane, hexenes, cyclopentane, cyclohexane, cyclohexane, benzene, toluene, methylene chloride, chloroform, carbon tetrachloride, 1-chloro-2- methyl propene and aliphatic ethers and esters. The suspension in (1) may be provided by introducing a concentrated aqueous solution of paraformaldehyde into the organic liquid, preferably by spraying. The final water content is preferably from 1 to 10 wt. per cent.
Patent GB-1464785-A (GB)
Title: Formation of a non-woven textile web
IPC: D04H3/073
Filed: 1974-11-29
Abstract: 1464785 Laminates POLYMER PROCESSING RESEARCH INSTITUTE Ltd and SEKISUI KAGAKU KOGYO KK 29 Nov 1974 [29 Nov 1973] 51753/74 Heading B5N [Also in Division D1] A non-woven web suitable for lamination to itself or to, e.g. a paper sheet is produced by forming a cylindrical array of warp fibres 1 and effecting a polymer melt or solution from orifices 10 in a rotating vessel 9 located within the array to form weft fibres which move outwards from the vessel and adhere to the warp fibres. Tensioning means may be used to equalize the warp fibre tensions. The warp fibres may be multifilament yarns, monofilaments, spun yarns, tapes, obtained by splitting or stretching a plastics film or part of a split web formed by partially splitting and then transversely spreading a uniaxially stretched film. The warp fibres may be of glass, nylon 6 polyester, high density polyethylene, polyvinyl alcohol or vinylon (polyvinyl alcohol fibres which have been stretched, heat treated and acylated). They are spaced 1-10 mm. apart. The warp fibres may be precoated with an adhesive and the weft fibres sucked on to the coated fibres by a reduced pressure of air outside the cylindrical array. Preferably however the weft fibres are still soft and tacky when they contact the warp fibres, and produce autogeneous bonding. Preferably they have a lower softening temperature than the warp fibres and can hence act as an adhesive when the web is hot laminated to, e.g. a paper sheet or cross laminated to an identical web turned through 90 degrees. The weft fibres may be formed from a mixture of amorphous and fibre forming polymer (polypropylene, polyamide or polyester), a mixture of low density and high density polyethylene, an ethylene 1 vinyl acetate copolymer, polyvinyl chloride, polyacrylonitrile or a polymer used to form the warp fibres. Cross lamination to form a net is preferably accomplished by the method of Specification 1,424,163 and illustrated in Fig. 3. A web produced by the apparatus of Fig. 1 is laid weft fibres uppermost on the top run of endless belt 33 which has been wetted with water by brush 34. The web is cut into lengths equal to the width of a similar web 38 passing underneath the endless belt. The cut web adheres to the belt, due to the surface tension of water, until it overlaps web 38 when it is pushed away from the belt by the downward movement of strings or rods (not shown) running across the belt, see Specification 1,424,163. The cross-laid layers are laminated by passing over a heated drum. In Example 1 multifilament glass warp yarns were bonded by ethylene/vinyl acetate copolymer weft fibres. In Example 2 7 mm. wide flat polyethylene warp yarns were bonded by the same weft fibres. In Example 3 nylon 6 800 denier warp filaments were bonded by polyamide weft fibres to form a tyre cord fabric.
Patent GB-1528497-A (GB)
Title: Testing apparatus
IPC: G01R31/28
Filed: 1975-12-18
Abstract: 1528497 Computer controlled circuit testing system ZEHNTEL Inc 18 Dec 1975 [30 Dec 1974] 51887/75 Heading G1U A circuit testing system includes a connection controller, including a plurality of, for example, reed switches, for establishing various connections to a circuit device under test (DUT), and a measurement controller for determining the measurements that are to be made upon the DUT via the previously established connection, both controllers being themselves controlled by instructions from a control computer. As described the system includes two main sections, Fig. 1: a functional tester 4 for testing the overall operation of the DUT by applying selected signals S1, S2, S3 to its input via a switch S, 35, and monitoring M1, M2 M2, M3, the output via a switch M; and an incircuit tester 2 which, via an arrangement of switches E, F, G effectively either applies a selected excitation 19, Fig. 12, to selected circuit nodes within the DUT and measures and converts 21 to digital form the voltage appearing across another selected pair of nodes, or connects a selected component in the DUT into either the input or the feedback of an amplifier, for example component Cl in DUT 8, Fig. 14, and converts to digital form the output of the amplifier. When the incircuit tester is used, as in Fig. 14, for measuring component values, nodes near the component Cl being tested are earthed, by switch G in Fig. 14, to prevent adjacent components C2, ...., C5 affecting the measurement. The results of all tests are transferred to the computer where they can be compared with pre-set tolerance values or otherwise processed, and tests continue sequentially, one after the other, until a whole test programme is complete.
Patent GB-1404476-A (GB)
Title: Headboards for beds
IPC: A47C19/02
Filed: 1972-11-10
Abstract: 1404476 Headboards for bedsteads STOCKTON BROS (HEADBOARDS) Ltd 12 Nov 1973 [10 Nov 1972] 51923/72 Heading A4J A headboard comprises a board A with each end received in a capped U-shaped pillar B.
Patent GB-1131951-A (GB)
Title: Method of and apparatus for continuous hot dip metal coating
IPC: C23C2/20
Filed: 1965-12-08
Abstract: 1,131,951. Coating by hot dipping. HITACHI Ltd. & NISSHIN STEEL CO. Ltd. Dec. 8,1965 [June 8, 1965; June 9, 1965], No.52131/65. Heading C7F. A steel strip 104 is continuously coated by hot dipping by moving it through a coating metal bath 103 and then upwardly away therefrom e.g. by being guided by bottom and deflector rolls 101 and 102, and directing a gas jet from means disposed on opposite sides of the coated strip on to the still non-solidified metal film coated on the strip in a direction opposite to the strips advancing direction, to blow away any excess metal from the metal film thereby forming metal films of any desired thickness on the opposite sides of the strip. The gas jet may be compressed air, nitrogen, steam or combustion gas. The directing means may be a pair of apron-like members 105 disposed on opposite sides of the strip to define throats 112 therebetween, each member having a horizontal upper wall 106 and parabolic lower wall 111; a sealing member 109 e.g. of asbestos or glass fibre may be fitted in a support frame 107 on each upper wall 106 to seal with each strip side. Both sealing members and apron-like members may be movable towards and away from the strip, e.g. by piston rods 110 and 122 respectively. The moving strip may be held at predetermined position between the gas directing to maintain its rectilinearity by two pairs of holding rolls, one below the bath surface and the other above the gas directing means(see Fig.3 not shown). Baffle plates 125 may be disposed below the gas directing means to prevent turbulence. The coating metal may be Zn, Zn-Al, Sn, Sn-Pb or Al. Specification 935, 516 is referred to.
Patent GB-1244787-A (GB)
Title: A hinged sliding vehicle door assembly
Inventor: ERB GERHARD
IPC: B60J5/06
Filed: 1969-10-25
Abstract: 1,244,787. Hinged sliding vehicle door. E. BODE. 25 Oct., 1969, No. 52376/69. Heading E2M. A hinged sliding vehicle door 2 is hinged to a roller carriage 7 guided by supporting rollers 8, 9 in a rail 20 along the outside of the vehicle body work, by means of an arm 5 having at one end an upwardly extending axle 6 pivotally attached to the roller carriage 7 and at the other end a downwardly extending axle 13 pivotally attached to a bearing eyelet 17 mounted in a recess 18 in the. door. The axle 6 carries at its upper end a guide roller 10 and a rigid pivoted arm 11 bearing a second guide roller 12, these running in a check rail 21 having a curved portion 23 at its inner end. The door carries at the bottom a rigid arm 29 carrying two rollers (31, 33) which run in a rail 30 mounted on the body work below the door opening, and may be further supported at the top by a roller (3) running in a rail (Fig. 1, not shown) or at its centre by two rigidly interconnected arms 24, 24' pivoted at one end 25 to the body work and at the other end carrying rollers 26, 26' respectively running in rails (27, 28) located on the inside of the door.
Patent GB-1383069-A (GB)
Title: Catalyst particularly useful for dehydrogenating saturated hydrocarbons
IPC: C07C11/02
Filed: 1972-11-13
Abstract: 1383069 Dehydrogenation catalysts INSTITUT FRANCAIS DU PETROLE 13 Nov 1972 [19 Nov 1971] 52376/72 Heading B1E [Also in Division C5] Catalysts comprise (a) alumina, (b) Mo, W and/or Re, (c) Ga, In, Tl, Sn, Pb, Sb and/or Bi, and optionally (d) Ru, Rh, Pd, Ir and/or Pt. The catalysts have a surface area of 20-150 m<SP>2</SP>/g and a heat of neutralization with NH 3  lower than 10 calories/g at 320C and 300 mm Hg pressure. The preferred support is γ-alumina to which the active material is applied by impregnation, drying, calcination and reduction with H 2 .
Patent GB-1350149-A (GB)
Title: Photometer
IPC: G01N21/86
Filed: 1971-11-11
Abstract: 1350149 Photo-electric photometers BOEHRINGER MANNHEIM GmbH 11 Nov 1971 [16 Nov 1970] 52415/71 Heading G1A In a two beam photometer having one or more photo-cells 6 and two fluorescent lamps 1, 7 which produce measurement and comparison beams, the light sources are operated in alternation by an A. C. supply 11. The A. C. output is also supplied to the processing circuitry 9 which compares the measurement and comparison intensities to give an indication on meter 10. Zero balancing is done with a regulator 14. In Fig. 2 a transmitting sample is placed in the measurement beam. In measuring reflectivity, Fig. 1 (not shown) of a sample (5), the comparison beam contains a plain reflector (8). Selection of a spectral range may be done using filters, prisms or gratings. The apparatus may be constructed as a portable unit Figs. 3, 3a (not shown) including a specimen holder Fig. 4 (not shown).
Patent GB-1338403-A (GB)
Title: Production of silicon from dichlosilane
IPC: C30B25/02
Filed: 1970-11-04
Abstract: 1338403 Silicon UNION CARBIDE CORP 4 Nov 1970 [6 Nov 1969 (2) 14 Oct 1970] 52524/70 Heading C1A [Also in Division C7] Silicon is produced by providing a mixture of dichlorosilane (mole concentration not more than 30%) and hydrogen in a reactor inside and separate from the walls of which is a deposition surface at a temperature of from 900‹ C. to 1250‹ C., the temperature at which the reaction is effected being maintained for a maximum residence time of five minutes, the residence time of the dichlorosilane in the reactor being sufficient to provide yields of silicon of at least 50% on the deposition surface, but insufficient to produce an amount of SiCl 4  greater than 30 mole per cent, based on the moles of silicon in the dichlorosilane. The effect of changes of mixture composition and reaction temperature on the reaction product is tabulated.
Patent GB-1090599-A (GB)
Title: Electrolytic coating of stainless steel
IPC: C25D5/36
Filed: 1964-12-29
Abstract: A process for the electrolytic deposition of metal coating on stainless steel, e.g. on stainless steel wire, wherein the surface to be coated is electrolytically depassivated, coated with a thin layer of zinc in an acid bath and then coated with a layer of the required metal from an alkaline bath, e.g. by passing the wire continuously through each bath in turn.  The zinc bath preferably contains sulphate ions, and uses a voltage of 3-5 V. The layer of zinc preferably consists of 0.5-1.0 gr zinc/sq.m. suitable final coating are copper, bronze, and brass.
Patent GB-1085720-A (GB)
Title: An improved loading and stacking apparatus
IPC: B65G67/08
Filed: 1964-12-30
Abstract: 1,085,720. Stacking-machines; loading-bays. H. GRASVOLL, G. G. MAGNUSSON, and K. I. WEINER. Dec. 30, 1964 [Jan. 14, 1964], No. 52881/64. Headings B8C and B8E. Apparatus for forming stacks of filled bags &c. on, for example, the platform of a lorry, comprises an infeed conveyer terminating in a transverse roller conveyer on which a row of articles is assembled, the row being lifted from the rollers by an elevator carriage which transports it to the stacking position where it is stripped off the carriage. The apparatus is mounted on wheels so as to move backwards in steps to form successive stacks. The apparatus is supported by wheels 10, 11 on the platform 2 and connected to the loading wharf by rack-toothed rods 7. Bags are received from a shoot 140 by a conveyer 12 and deposited on driven rollers 17 of the transverse conveyer. Initially projecting stop means 20, 21 which is depressed by the bag when the latter is fully on the rollers, prevents skewing. When a row has been assembled on the rollers, a carriage 30 running in channel members 29 forming part of an elevator 28, is caused, by switches operated by the row, to rise beneath the rollers 17. Plates 35 enter between the rollers and take off the row. The carriage then moves to the left, as shown, beneath a comblike stripper member 38, 40 held raised by contact between elements 43, 44. The elevator then descends releasing the stripper and the carriage moves to the right, the plates 35 passing through slots 41 in the stripper. The row is thus deposited on the platform. When the desired height of stack has been achieved, the next movement of the carriage to the left causes it to contact the previously deposited row. It then pushes the apparatus rearwardly so that a second stack may be built adjacent the first.
Patent GB-1417185-A (GB)
Title: Cathode ray tube construction
IPC: H01J29/32
Filed: 1972-11-17
Abstract: 1417185 Colour television tubes A W STANDAART 17 Nov 1972 [23 Nov 1971 18 July 1972] 53080/72 Heading H1D A multi-beam colour television tube which dispenses with a shadow mask and includes a screen with parallel stripes of the different colour phosphors, has a single gun producing at least three non-crossing electron beams arranged in a substantially vertical plane and maintained spaced from each other throughout their length, the gun including a single sheet cathode having a channel formation projecting towards the screen and defining a vertically elongated emission panel, and parallel, spaced, control grid and first anode elements each having three vertically spaced holes for controlling and shaping the three beams, the holes in the control grid and anode being aligned substantially perpendicularly to the emissive panel, and provided with electrically conductive material to permit the application of selected potentials to the individual holes. As shown for the threebeam gun of Fig. 7, the emissive material of the cathode is coated on one surface 34B, Fig. 6, of a hollow hexagonal tube formed by a pair of channel members, the heater therefor consisting of a pair of windings 35, coated with ceramic, interlocking to provide a maximum temperature at the centre of the cathode area, and oppositely wound to cancel inductive effects. The cathode is mounted in an angled recess in the ceramic slab 36 of the control electrode, which recess is shaped to maintain the emissive surface spaced from its base, in which beam defining apertures 38R, 38B and 38G, each with a separate lead 39, are provided. The first anode 29 is generally similar to the control grid, and may be of identical form, but with the recess facing forwardly. The focus anode 30 is formed by three cylinders 47R, 47B, and 47G each with a corresponding entrance aperture 46R, 46B, and 46G, respectively, giving a lens action. The accelerating anode assembly 31 includes tubes 52R, 52B, and 52G extending rearwardly from, and semicircular members 55 extending forwardly from, an apertured metal disc 51 having a forwardly extending screening cylinder 50, to which getter ring 56 is secured, and which, with the additional nickel screening cylinders 40, 43, 45, and 54 is secured by pins to the support rods 26 to form a unitary assembly which is conductively connected to a conductive coating on the envelope by the spring fingers 57. The three beams are simultaneously scanned, either magnetically or electrostatically, along adjacent triplets of horizontal red, blue, and green phosphor stripes (Fig. 10, not shown), the beams being converged thereon by a pair of adjustably mounted magnets disposed outside the tube envelope above and below the accelerating anode (64a and 64b, Fig. 2, not shown). Many numerical examples of dimensions and voltages are provided.
Patent GB-1528018-A (GB)
Title: Flexible multilayer magnetic recording medium
IPC: G11B5/716
Filed: 1975-12-30
Abstract: 1528018 Magnetic recording medium BASF AG 30 Dec 1975 [31 Dec 1974] 53100/75 Heading B2E] A magnetic recording medium comprises a base, e.g. of polyethylene terephthalate, which has at least two layers containing an acicular magnetic material in an organic binder, e.g. Fe 2 O 3  in vinyl chloride/vinyl acetate copolymer, the uppermost magnetic layer having a signal to print through ratio less than 55db and the lowermost magnetic layer having a signal to print through ratio of at least 55db.
Patent GB-1527750-A (GB)
Title: Yoke mount for a cathode-ray tube
IPC: H01J29/82
Filed: 1975-12-31
Abstract: 1527750 Cathode-ray tubes RCA CORPORATION 31 Dec 1975 [7 Jan 1975] 53289/75 Heading H1D A cathode-ray tube deflection yoke mount comprises a first portion 31, Fig. 7, in which the yoke is mounted and a second portion 30, Fig. 6, which is secured to the tube envelope, wherein a spring arrangement adjustably connects the two portions together, and provides the sole support therebetween, in such a manner as to permit independent adjustment of the yoke with respect to the tube envelope about two perpendicular axes. As shown, the mount portion 31 comprises a central ring 54 having lugs 56 for the snap-on attachment of a yoke and four circumferentially spaced bow springs 46, 48, 50 and 52, Fig. 2, each having an externally formed bracket 62 with a slot 65 to receive respective split projections 42 of the mount platform 30. Apertures 66 in the brackets 62 and slots 44 in the projections 42 permit insertion of nuts and bolts 72, 68 to secure the two portions together. By loosening one opposite pair of nuts and bolts, with the other pair tightened, respective independent horizontal or vertical adjustment of the yoke alignment may be effected. In an alternative embodiment, Figs. 19-23 (not shown), the bow springs are replaced by cantilever springs. In other embodiments disclosed the spring arrangement is provided on the platform mount secured to the tube and the co-operating projections are provided on the yoke support portion. The yoke mount is preferably formed of plastics material, and when the yoke is finally aligned the mount portions 30, 31 may subsequently be permanently fixed together by glue or by ultrasonic welding.